487778800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:471

約数の個数: 120

約数和(自身を含む): 1222699520

約数和(自身を除く): 734920720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 139, 155, 200, 248, 278, 283, 310, 400, 496, 556, 566, 620, 695, 775, 1112, 1132, 1240, 1390, 1415, 1550, 2224, 2264, 2480, 2780, 2830, 3100, 3475, 4309, 4528, 5560, 5660, 6200, 6950, 7075, 8618, 8773, 11120, 11320, 12400, 13900, 14150, 17236, 17546, 21545, 22640, 27800, 28300, 34472, 35092, 39337, 43090, 43865, 55600, 56600, 68944, 70184, 78674, 86180, 87730, 107725, 113200, 140368, 157348, 172360, 175460, 196685, 215450, 219325, 314696, 344720, 350920, 393370, 430900, 438650, 629392, 701840, 786740, 861800, 877300, 983425, 1219447, 1573480, 1723600, 1754600, 1966850, 2438894, 3146960, 3509200, 3933700, 4877788, 6097235, 7867400, 9755576, 12194470, 15734800, 19511152, 24388940, 30486175, 48777880, 60972350, 97555760, 121944700, 243889400, 487778800]

約数ペア:

[(1, 487778800), (2, 243889400), (4, 121944700), (5, 97555760), (8, 60972350), (10, 48777880), (16, 30486175), (20, 24388940), (25, 19511152), (31, 15734800), (40, 12194470), (50, 9755576), (62, 7867400), (80, 6097235), (100, 4877788), (124, 3933700), (139, 3509200), (155, 3146960), (200, 2438894), (248, 1966850), (278, 1754600), (283, 1723600), (310, 1573480), (400, 1219447), (496, 983425), (556, 877300), (566, 861800), (620, 786740), (695, 701840), (775, 629392), (1112, 438650), (1132, 430900), (1240, 393370), (1390, 350920), (1415, 344720), (1550, 314696), (2224, 219325), (2264, 215450), (2480, 196685), (2780, 175460), (2830, 172360), (3100, 157348), (3475, 140368), (4309, 113200), (4528, 107725), (5560, 87730), (5660, 86180), (6200, 78674), (6950, 70184), (7075, 68944), (8618, 56600), (8773, 55600), (11120, 43865), (11320, 43090), (12400, 39337), (13900, 35092), (14150, 34472), (17236, 28300), (17546, 27800), (21545, 22640)]